Chair seat



Oct. 2, 1934. G. D. SCHERMERHORN CHAIR SEAT Filed Aug. 26, 1951 INVENTOR. George Schermer/vor BWM/Q m ATTORNE Y.

Patented oct. 2, 1934 UNITED STATES PATENT OFFICE CHAIR SEAT This invention relates to an improved chair seat and particularly a seat for a folding chair.

It comprises a chair seat which includes a metal frame that carries the seat panel. The in- 5 Vention resides primarily in the construction of the frame which supports the seat panel and the means whereby the frame parts are secured together.

An object is to provide a chair seat of the class l0 described which is simple, strong, durable, and inexpensive to manufacture.

A further object is to .provide a chair seat having a metal frame which is readily secured together and which holds the seat panel ilrmly in place and which is capable of withstanding hard usage.

Various other important characteristics and features of my improved chair seat will become apparent from the following description, ap- 20 pended claims, and accompanying drawing,

wherein:

Fig. 1 is a side elevation of a folding chair provided with my improved seat,

Fig. 2 is an elevation of a fragment of the seat itself showing one `of the frame members removed, A

Fig. 3 is a perspective of a fragment of a corner of the frame of my improved seat with the parts detached,

30 Fig. 4 is a perspective of a fragment of a corner of my improved seat with the parts secured together,

Fig. 5 is a horizontal sectional view taken on the line 5--5 of Fig. 4, v

Fig. 6 is a vertical sectional view through my chair seat looking toward one side railof the vframe showing the back frame member in cross section, and

Fig. 7 is a vertical sectional view taken 0n line 7-7 of Fig. 6.

In the folding chair wherein my seat is here shown as a component part I have illustrated the chair as being of a general type wherein the uprights are indicated as 10, and the rear legs as 12. The rear legs are pivoted to the uprights as at 14 and are adapted to fold within the plane of the uprights. The seat indicated generally as 16 is pivoted at 18 to the rear legs and is slidably supported between the uprights upon gudgeons 20 which are adapted to travel in guide slots 22 formed in the uprights to produce the folding and unfolding of the chair parts.

The seat with which my invention is concerned comprises a seat panel 24 which may be provided with upholstering cloth 26 and suitable padding 28. This seat panel is carried by metal frame work. This frame work comprises an integral U-shaped frame section having a front portion 30 and side rail portions 32. The frame section is formed so as to be of similar cross'section 6o throughout its entire length. The upper marginal edge portion is rolled over as atv 34 forming a flange, and the lower marginal edge portion is rolled over to form a tubular flange 36. The tubular flange 36 together with the flat marginal 65 flange 34 form between them a frame section which is channel shaped and it is Within this channel that the seat panel is secured. 'Ihis is shown particularly in Figs. 6 and 7. It will there be noted that the upholstering cloth 26 is folded 70 over the edge of the seat panel 24 and held in place against the frame member.

The seat frame is coupled with a back frame portion indicated generally as 38. This back frame portion is formed in cross section in the same manner that the U-shaped main frame portion is formed, namely, to provide an upper flat flange 34 and a lower tubular flange 36 as is shown in Figs. 3 and 6.

This back frame portion has its flanges 34 and 30 36 cut away to provide a flat extension 40 which is turned angularly as at 42 to lap over the adjacent end of the side rail 32 as shown in Figs.

3 and 4. 'I'he angular end portion 42 of the back frame member has a projecting tongue element 44.

Each side rail member is provided in proximity to its rear end with an outwardly projecting loop 46 and closely adjacent to the loop and forwardly thereof is an aperture 48 through the said rail 90 member. The back frame member is secured to the side rails of the seat frame, as shown in Figs. `3 and 4, by moving the same thereagainstvand causing the tongue 44 to extend through the loop 46 and turning the end of the tongue into the 95 aperture 48 as shown in Fig. 4. In Fig. 5 this turned over end is indicated as 50. It will be seen that this secures the back frame member snugly in place and that the seat panel is held between the ilat flange 34 and the tubular flange 36 of 100 .the seat frame.

The seat panel with its upholstery may be moved into the channel of the U-shaped frame member and the back frame member then assembled thereon and secured thereto. The end of the tongue 44 may be forced into the aperture 48 with a suitable tool to secure the parts together.

The side rails have the tubular lower flange 36 flattened as at 52 and apertured as at 54 to receive 1 10 therethrough a rod 56, which rod projects at both ends beyond the side rails and is adapted to travel at such ends through the guide slots formed in the uprights.

What I claim:

1. A chair seat including an integral frame section forming front and side rails of a seat frame,

' each side rail provided with an external loop arranged in proximity to its rear end and an aperture therethrough adjacent to said loop, a rear frame section having ends overlapping the side rails and each provided with a tongue portion extended through the loop of the side rail and turned into the aperture therethrough holding said frame sections together.

2. A chair seat comprising an integral U-shaped section constituting the frontand side rails of a seat frame and having a flat upper marginal flange and a tubular lower marginal flange forming between them a channel, a seat panel disposed within said channel, a back frame section having similar marginal portions engaging the rear edge of the seat panel, each side rail portion having its tubular lower marginal iange compressed and flattened at a point intermediate its ends to form a vertical double walled section, and a pivot rod extending across said seat underneath the panel and through said flattened double walled section in the side rails. v

3. A chair including two sectional frame members for supporting a chair seat, an exterior loop on one of said sectional frame members and an aperture through said member adjacent to said loop, and means on said other sectional frame member extending through said loop and turning into said aperture whereby the two sectional frame members are clamped together.

4. A chair including two sectional frame members supporting a chair seat therebetween, one of said sectional frame members provided with a projecting loop and an aperture through said member adjacent to the loop, and a tongue on the other of said sectional frame members extended through said loop and engaged in the aperture inthe first mentioned frame member securing said sectional frame members together.

5. A chair seat including a plurality of sectional frame members, a seat panel supported by said sectional frame members, means integral with the sectional frame members for joining said members together comprising projecting loops and adjacent apertures on one o-f said sectional frame members, and cooperating tongues on the other of said sectional frame members extending through said loops and turning into said apertures to hold said seat panel and sectional frame members together.

GEORGE D. SCHERMERHORN. 

